Book Information: Time of Ghosts, a

Kyra, beautiful wife of the Altan, ruler of Karhsaam, had been abducted... an ominous portent of a new force of evil at work in the world. To Raven and Spellbinder this meant the beginning of a new and hazardous journey during which they would make new friends, like Moonshadow whose strength waxed and waned with the moon itself, and encounter untold dangers as Belthis, sorcerer and long-time foe, lured them deeper and deeper into the frozen wastes of the North where his spells had raised the dead and a rainbow held the key to an army of icy warriors...